Abnormal temperature behavior of photoluminescence from self-assembled InAs/AlAs quantum dots

Z Ma, K Pierz, P Hinze - Applied Physics Letters, 2001 - pubs.aip.org
We report on the temperature dependence of photoluminescence (PL) from self-assembled
InAs/AlAs quantum dots (QDs). In the temperature range of 6–90 K, an abnormal blueshift of …

Time-resolved photoluminescence spectra of self-assembled InAs/GaAs quantum dots

LM Kong, JF Cai, ZY Wu, Z Gong, ZC Niu, ZC Feng - Thin Solid Films, 2006 - Elsevier
Two types of InAs self-assembled Quantum dots (QDs) were prepared by Molecular beam
epitaxy. Atomic force microscopy (AFM) measurements showed that, compared to QDs …

Size distribution effects on self-assembled InAs quantum dots

SI Jung, HY Yeo, I Yun, JY Leem, IK Han… - Journal of Materials …, 2007 - Springer
We report on the unusual behaviors of the optical properties for self-assembled InAs/GaAs
quantum dots (QDs) by using photoluminescence (PL) spectroscopy. Distinctive double …

Visible photoluminescence from self-assembled InAs quantum dots embedded in AlAs cladding layers

UH Lee, D Lee, HG Lee, SK Noh, JY Leem… - Applied physics …, 1999 - pubs.aip.org
Photoluminescence (PL) from InAs self-assembled quantum dots (QD) embedded in the
AlAs matrix was strong and clean around 700 nm. PL efficiency remained quite high at room …

Photoluminescence study on the growth of self-assembled InAs quantum dots: Formation characteristics of bimodal-sized quantum dots

SI Jung, HY Yeo, I Yun, JY Leem, IK Han, JS Kim… - Physica E: Low …, 2006 - Elsevier
We report a photoluminescence (PL) study on the growth process of self-assembled InAs
quantum dots (QDs) under various growth conditions. Distinctive double-peak feature was …

Energy level control for self-assembled InAs quantum dots utilizing a thin AlAs layer

JS Kim, PW Yu, JY Leem, JI Lee, SK Noh… - Applied Physics …, 2001 - pubs.aip.org
Ground-state energy of InAs quantum dots (QDs) in the GaAs matrix can be changed
significantly by introducing a thin AlAs layer (1 nm). The photoluminescence (PL) peak …

Photoluminescence of self-assembled InAs/AlAs quantum dots as a function of density

Z Ma, K Pierz, UF Keyser, RJ Haug - Physica E: Low-dimensional Systems …, 2003 - Elsevier
We report photoluminescence data from three InAs/AlAs quantum dot samples with different
densities and separations, respectively. For medium density the quantum dot related …

Anomalous excitation intensity dependence of photoluminescence from InAs self-assembled quantum dots

J Motohisa, JJ Baumberg, AP Heberle, J Allam - Solid-State Electronics, 1998 - Elsevier
We have studied photoluminescence (PL) from single InAs self-assembled quantum dots
(QDs) by micro-PL measurements and, in particular, studied the excitation intensity …

The photoluminescence decay time of self-assembled InAs quantum dots covered by InGaAs layers

GW Shu, CK Wang, JS Wang, JL Shen… - …, 2006 - iopscience.iop.org
The temperature dependence of the time-resolved photoluminescence (PL) of self-
assembled InAs quantum dots (QDs) with InGaAs covering layers was investigated. The PL …

Optical Characteristics of InAs/InGaAsP/InP Self-Assembled Quantum Dots Emitting at 1.4–1.6 µm

UH Lee, JS Yim, D Lee, WG Jeong… - Japanese journal of …, 2002 - iopscience.iop.org
InAs/InGaAsP quantum dots (QD) grown on InP substrates show strong photoluminescence
(PL) signals, with peaks from 1.4 to 1.6 µm at room temperature. Time-resolved PL …